I decided to give synthetic another try, this time with a 23mm knot. I have and use during travels a Muhle 31M530 (21mm), and I am not impressed.
I don't expect 23mm will be any different but at least I can say I tried them and Edwin Jagger and Muhle share the same knot, as far as I know. So, which one would you recommend, and why:
Edwin Jagger, good price but don't like their handles.
Muhle, more expensive but nice handles.

I had a 23mm Muhle set in a Rudy Vey Chubby type handle that I really enjoyed, was just about perfect really and far as size went.
I just sold it a few days ago though, too many brushes and I'm just not diggin' on synthetics for some reason in spite of their ability to put out uber creamy lather.

(11-19-2012, 09:03 PM)celestino Wrote: You could also just order a custom Frank Shaving brush. i got some with a 24mm knot and 48mm loft shipped for just about $20. Good luck.

Be aware if you go this route you may not get what you want, GDCarrington and I both spoke with Ian of Frank's Shaving and ordered custom 28mm synthetics and got burned.
The Muhle fibres are much better than Frank's anyway, as are H.I.S fibers..really a shame they can't make a better handle/loft combo.

Connaught usually has some reasonably priced Muhle synthetics (around $55 shipped) but I believe the only handles available in 23mm are basic black/ivory/faux horn...which sort of defeats your purpose of going with a Muhle.